<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <img style="width: 200px;height: 200px;" th:src="|/upload/${filename}|"><br>
    <a th:href="|download?filename=${filename}|">下载文件</a>
</body>
</html>
